Machine for making pneumatic-tire flaps.



4IE. G. HULSE.

- MACHINE FORMAKING PNEUMAHC TIREy FLAPS.

2 SHEETS-SHEET I.

E. G. HULSE.

MACHINE FORMAKING PNEUMAIIC TIRE FLAPS.

. APPLICATION FILED 00T. IB. w17. 1,302,660. Patented May 6, 1919,

2 SHEES--SHEEI 2.

IIIIHIIIIHHHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII f //Hl STATES PATENT OFFICE 'EDisoN 'Gi HULSE, or Annen, oHIo, AssIGNon To KE'LLYsPnINGFInLD TIRE ce MPANY. L or JERsEY CITY, NEW JERSEY, A coRroRAfrIoN or NEW JERSEY.

1. Be it known that EDISON G. Hnnsn, a citizen of` the lUnited States, residing at f Akron, in thefcou-nty `of Summit and State ,i 5.,of Ohio ,-l1ave invented certain new and useg -.fullmprovementsin Machines for Making Pneumatic-Tire Flaps, of which thel followngl iis a; specification. This invention relates -to improvements 1n ,g lofmachines for making fla-ps for pneumatic v."i-Ytires.

he object of the invention 1s to provide -aimachine .of simple construction .which will f be effective in `operation and capable of be- 1 5 .ing `easily manipulated.

f.; tothe compression rolls.

f iltwis usualyto provide a pneumatic tire with a flaplwhichiis placed in the casing so as to'closel thefspace between the beads for the purpose of furnishing a smooth seat for the inner tube. 1

These tire flaps are made up of r,layers of rubberized fabric of different widths so disposed that the flap will be the thickest in the center and of a slightly concavoconvex shape so that it will conform to the shape of the casing and inner tube.

Referring to the drawings, 1 represents a supporting base or platform arranged at the upper ends of legs 2, which may be strengthened by cross pieces?) so as t0 provide a suitable supportingframe for the operating parts of the machine.

The rolls of rubberized fabric are mounted upon an upright support 4 at the forward i5 end of the machine, 5 representing what is known as the cover strip, and 6, 7 8 and 9 the intermediate strips, these rolls being placed upon wooden pegs 10 which project laterally from the support Ll. There is also provided what is known as a base strip 11, this base strip being preferably of flannel rubberized on the upper sidetthis roll 11 being placed upon a peg 12 iproJecting laterally from a support 13, with a flexible band 14 having a weight 15 hung-about the same Specification of Letters Patent.

i Application filed October 18, 191'?. Serial No. 197,239.

Ato the varying thickness vof the fabric strips.v

MACHINE FOR MAKING PNEUMATIC-TIRIE; FLAPS.

Patentedlmay 6,1919.

so as to provide the necessary tension. Leading from the various rolls is a series of sup-ports 17, 18, 19, 20, 21 and v22, `converged rearwardly s o that their rear ends will be 1n close proximity to each otherthe rear 60 ends being secured to an upright support123. These supports preferably have guide strips S on the back edge thereof and not4 only serve the purpose of guiding the strips of rubberized fabric, but also provide a con- 65 vement arrangement for splicing the end. of a new roll of fabric to the end ofr the eX- hausted roll, the operator stopping the machine for this purpose in the manner hereinafter, explained. From the supports the strips of fabricpass through suitable' guides 2l, 25 and26 having alined apertures of decreasing height so that the strips lwill be brought in close proximity to each other, and from these guides the series of 4fabric 75 strips pass into a turnover device. I

It should be explained that the roll 11 is of greater width than the othersso thatl itsl edges will project beyond the same; the roll 5, which is the cover strip, being of the same width as the finished flap.; the intermediate strips being of varying' widths, as shown in Fig. G. The turn-over device referred to isfor the purpose of'turning over the edges of the base strip 11 andis shown in detail 85 in Figs. 4 and 5. This turn over deviceis in the nature of a plate 27 having its sideV edges 27a bent upwardly and inwardly so as to form groove-ways which converge rearwardly; the distance between the side walls of the groove-ways at the forward en d of the plate 27 being substantially the same as the width of the strip 11 and the distance between the walls of the l,g'roove-ways-a't the rear end of the `plate being substantially the width of the iap as finally formed. As the series of layers enter 'this turn-over device, therefore, it will be seen that the e ges of the strip 11 are turned over to the position shown in Fig. 6.v From the turn-over device the .series of'strips p ass through two compression rolls 28- and 29, the lower roll 2 9 having a straight periphery and the upper roll 28 a concave periphery to conform Springsy 30'serve to hold these rolls yield ably together so as to put-a yielding pressure upon the strips to cause them to adhere to-y y gether, adjusting'screws 31- being providedv to adjust the tension of the springs. 110

" from the 'roll 33 by the gears 32a and 33a. yTheI shaft of the roll 33 has a pulley 51 and `Fro1n the pressure.. rolls 28 and 29 the series of strips pass through a pair of pressure and driving rolls 32 and 33, which are driven in the manner hereinafter explained, and also with these rolls the lower one is formed vvitl a straight periphery and the upper one with a concaved periphery to conform to the varying thickness of the irp. Adjusting screws 34 are provided for holding these rolls together to the necessary eX- tent to place a proper pressure upon the fabric strips for driving purposes.

From these rolls 32 and 33 the flap thus formed is rolled upon' a reel 35 which may be'readily removed when filled, and taken to t-hevvulcanizing` mold, Where the flap is cured and given the concave-convex form previously referred to. This reel is rotated in the manner novv explained. y

In the present case there is shoiyn an electric motor 36 mounted upon a/"suita-ble support 37 on the frame which drives a countershaft 38, mounted in suitabl bearings 39 at the rear end of the fram the driving connection being through tl l'e medium of the pulleys- 40 and 41 and ,f elt 42. The counter-shaft 3S has a smaller pulley 43 Which'drives a pulley 44 by a belt 45 the pulley 44 being secured to a. shaft 46 mounted in suitable bearings 47 secured to and 'depending from the table l.; This shaft 46 .has a sprocket` Wheel 48 which transmits motion to `thesprocket Wheel49 on the shaft of the roll '33, through the medium of the sprocketfichain 50, the roll 32 being driven the shaft o-f the reel 35 has a pulley 52 where- ,by motion is transmitted tothe reel through 'the medium of a` belt 53. v For the purpose of starting and stopping 'l ,themachine there is provided a hand lever J54 Which isconnected to a crank arm 55 by a rod 5G the crank arm being attached to a transverse shaft 57 which has a second crank arm 58 provided with an idle pulley 59 over which passes the belt so that the belt may be loosened or tightened.

Having thus described my invention, I claim l. In a machine of the character described, supports for a series of fabric rolls,l devices associated therewith for causing fabric strips to be drawn therefrom and laid to y gether, supporting table-like guides between said rolls and said devices converging toward said devices, and means for compresslng said strips to cause them to adhere together.

2. In a machine of the character described, supports for a series of fabric rolls, a series of flat table-like supporting guides for said rolls converging rearwardly, a turn-over device, compressing rolls, and feeding rolls.

3. In a. machine of the character described, supports fora series of fabric rolls arranged in substantiallyv vertical alinement, a series of flat guiding supports for the fabric from said-rolls converging rearwardly, apertured auxiliary guides for the fabric strips, a turnover device, a pair of compressing rolls, and a pair of feed rolls.

4. In a. machine of the character described, supports for a series of fabric rolls arranged in substantially vertical alinement, a series of flat guiding supports for the fabric from said rolls converging rearwardly, apertured auxiliary guides for the fabric strips, a turn over device, a pair of compressing rolls, a pair of feed rolls, and a drum to receive the fabric strips.

lIn testimony whereof,I have hereunto set my hand this 1st day of October, 1917.

EDISON G. HULSE.

Witnesses: y

E. W. RANNELLS, G. R. LUXMORE. 

